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Schon, Jennifer A.; Eitel, Karla B.; Bingaman, Deirdre; Miller, Brant G.; Rittenburg, Rebecca A. – Science and Children, 2014
Donnelly, Idaho, is a small town surrounded by private ranches and Forest Service property. Through the center of Donnelly runs Boulder Creek, a small tributary feeding into Cascade Lake Reservoir. Boulder Creek originates from a mountain lake north of Donnelly. Since 1994 it has been listed as "impaired" by the Environmental Protection…
Descriptors: Problem Based Learning, Science Activities, Science Projects, Environmental Education
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Tarlow, Lynn D. – Mathematics Teaching in the Middle School, 2008
This article describes a mathematics session in which students explored a challenging combinatorics task, a topic shown to be difficult for students when taught traditionally. The students developed a progression of personal representations, increasingly symbolic and abstract, which they used to find a solution and justification. (Contains 8…
Descriptors: Mathematics Activities, Mathematics Instruction, After School Programs, Knowledge Representation